"I do believe her life would have turned out differently," Cissy wrote, according to The Associated Press. "It would have been easier for her to get sober and stay sober. Instead she was with someone who, like her, wanted to party. To me, he never seemed to be a help to her in the way she needed."

Whitney Houston died at age 48 at a hotel in Beverly Hills, California on February 11, 2012. She was found in a bathtub and her death was ruled an accidental drowning, spurred by cocaine use and a pre-existing heart condition.

Bobby Brown and Whitney Houston divorced in 2007, after 15 years of marriage. Bobbi Kristina Brown is Houston's only child.

Cissy, 79, told the Associated Press that she has not had contact with Brown and did not see a reason to contact him. She said she published the book so that people would not only know the worst parts about her daughter. Cissy also wrote that her daughter could be "mean" and "difficult" but was very loving.